Why cant we make a TCP/IP game!?!?

[cholerajoe]

My friend and I have tried everything we can think of and we still can't make a connection via tcp/ip. We are both behing Linksys DSL router switches. But they are set up as DMZ hosts. The game only gives my LAN address as a valid IP. It will not recognize my WAN IP address. Neither of us can play TCP/IP or PBW.(we have both registered the PBW client) **WAAAA** really though. I have read many articles about this on these forums but none really cover not being able to connect at all.